APA (7th ed.) Zitazioa
Ingrams, J. (2012). Thinking of becoming a counsellor? Karnac.
Chicago Style (17th ed.) Zitazioa
Ingrams, Jonathan. Thinking of Becoming a Counsellor? London: Karnac, 2012.
MLA (9th ed.) Zitazioa
Ingrams, Jonathan. Thinking of Becoming a Counsellor? Karnac, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.